Battery Point Formation
Stratigraphic range: Early Emsian-Early Eifelian
Sawdonia ornata fossil from the Battery Point Formation
TypeGeological formation
Unit ofGaspé Sandstones
UnderliesMalbaie Formation
OverliesYork River Formation
Thickness2,300 m (7,550) ft
Location
RegionQuebec
Country Canada

The Battery Point Formation is a geologic formation in Quebec. It preserves fossils dating back to the early Emsian to early Eifelian the lower Devonian period.[1]

Description

A part of the Gaspé Sandstones,[2] the Battery Point Formation is believed to have been deposited in a fluvial environment based on the presence of rootlets as well as the abundance of trough and planar-tabular cross bedding, and the lower part resembles modern braided systems more than meandering systems.[2][3] It rests unconformably on the shallow marine sandstones of the York River Formation (the basal unit of the Gaspé Sandstones and making the Battery Point Formation the first continental unit of the sequence[2]), transitioning upwards into the Malbaie Formation, and is 2,300 meters (7,550 feet) thick.[4]

Fossil content

Limited intervals in the lower part of the formation contain remains of a few brachiopods and bivalves, though marine fauna is not known from other parts of the formation.[1] Plant and freshwater fish fossils are also known.[2]

Acanthodians
GenusSpeciesPresence MaterialNotesImages
Ankylacanthus A. incurvus Cap-aux-Os locality, Gaspé Peninsula.[5] Fin spines.[5] A possible gyracanthid, formerly known as Gyracanthus incurvus.[5]
Chondrichthyans
GenusSpeciesPresence MaterialNotesImages
Doliodus D. latispinosus Cap-aux-Os Member, north side of Gaspé Bay.[6] Fin spines.[6] Also known from the Campbellton and York River formations.[6]
Plants
GenusSpeciesPresence MaterialNotesImages
Adelocladoxis A. praecox [7] A cladoxylopsid[7]
Eddianna E. gaspiana In the vicinity of Douglastown.[8] A rhyniopsid[8]
Franhueberia F. gerriennei South shore of Gaspé Bay, in the vicinity of Douglastown, Quebec.[9] A fossil preserved anatomically by cellular permineralization.[9] A euphyllophyte.[9]
Renalia R. hueberi [10] A vascular plant.[10]
Sawdonia S. ornata North shore of Gaspé Bay, which is part of the Cap-aux-Os Member.[11] A zosterophyll.[11]
Wilhowia W. phocarum North Shore of Gaspé Bay, Quebec, Canada.[12] Partially permineralized adpressions of remains.[12] A basal euphyllophyte.[12]
Fungi
GenusSpeciesPresence MaterialNotesImages
Glomites G. oqoti In the vicinity of Douglastown, south shore of Gaspé Bay (Quebec, Canada).[13] Glomoid spores in trimerophyte axes.[13]

See also

References

  1. 1 2 Rust, Brian R.; Lawrence, David A.; Zaitlin, Brian A. (1989-04-01). "The sedimentology and tectonic significance of Devonian and Carboniferous terrestrial successions in Gaspé, Quebec". Atlantic Geology. 25 (1). doi:10.4138/1666. ISSN 1718-7885.
  2. 1 2 3 4 Cant, Douglas J. (1973). "Devonian Braided Stream Deposits in the Battery Point Formation, Gaspe Est, Quebec". Atlantic Geology. 9 (1). doi:10.4138/1423. ISSN 1718-7885.
  3. ↑ Cant, Douglas J.; Walker, Roger G. (2011-02-08). "Development of a braided-fluvial facies model for the Devonian Battery Point Sandstone, Québec". Canadian Journal of Earth Sciences. 13: 102–119. doi:10.1139/e76-010.
  4. ↑ Lawrence, David A.; Williams, Brian P. J. (1984). "Evolution of Fluvial Style--Lower Devonian Battery Point Formation, Gaspe Peninsula, Quebec, Canada: ABSTRACT". AAPG Bulletin. 68 (4): 499. ISSN 0149-1423.
  5. 1 2 3 Burrow, Carole J.; Turner, Susan; Desbiens, Sylvain; Miller, Randall F. (2008-08). "Early Devonian putative gyracanthid acanthodians from eastern CanadaInternational Geoscience Programme (IGCP) Contribution 491, Middle Palaeozoic Vertebrate Biogeography, Palaeogeography, and Climate". Canadian Journal of Earth Sciences. 45 (8): 897–908. doi:10.1139/e08-033. ISSN 0008-4077.
  6. 1 2 3 Burrow, Carole J.; Turner, Susan; Maisey, John G.; Desbiens, Sylvain; Miller, Randall F. (2017). "Spines of the stem chondrichthyan Doliodus latispinosus (Whiteaves) comb. nov. from the Lower Devonian of eastern Canada". Canadian Journal of Earth Sciences. 54 (12): 1248. doi:10.1139/cjes-2017-0059. hdl:1807/78890. ISSN 0008-4077.
  7. 1 2 Durieux, Thibault; Lopez, Madeleine A.; Bronson, Allison W.; Tomescu, Alexandru M. F. (October 2021). "A new phylogeny of the cladoxylopsid plexus: contribution of an early cladoxylopsid from the Lower Devonian (Emsian) of Quebec". American Journal of Botany. 108 (10): 2066–2095. doi:10.1002/ajb2.1752. ISSN 0002-9122. PMID 34664712. S2CID 239028044.
  8. 1 2 Pfeiler, Kelly C.; Tomescu, Alexandru M.F. (2017-10-09). "An Early Devonian permineralized rhyniopsid from the Battery Point Formation of Gaspé (Canada)". Retrieved 2022-08-23.
  9. 1 2 3 Hoffman, Laurel A.; Tomescu, Alexandru M. F. (2013). "An early origin of secondary growth:Franhueberia gerrienneigen. et sp. nov. from the Lower Devonian of Gaspé (Quebec, Canada)". American Journal of Botany. 100 (4): 754–763. doi:10.3732/ajb.1300024. ISSN 0002-9122. PMID 23535772.
  10. 1 2 Gensel, Patricia G. (1976-07-01). "Renalia hueberi, a new plant from the lower Devonian of Gaspé". Review of Palaeobotany and Palynology. 22 (1): 19–37. doi:10.1016/0034-6667(76)90009-9. ISSN 0034-6667.
  11. 1 2 Gensel, Patricia G.; Andrews, Henry N.; Forbes, William H. (March 1975). "A New Species of Sawdonia with Notes on the Origin of Microphylls and Lateral Sporangia". Botanical Gazette. 136 (1): 50–62. doi:10.1086/336782. ISSN 0006-8071. S2CID 84204867.
  12. 1 2 3 Gensel, Patricia G. (2022-08-05). "Partially Permineralized Adpressions of Wilhowia phocarum Gensel gen. et sp. nov., a New Basal Euphyllophyte from the Lower Devonian Battery Point Formation, North Shore of Gaspé Bay, Quebec, Canada". International Journal of Plant Sciences. 183 (7): 604–629. doi:10.1086/721263. ISSN 1058-5893. S2CID 251377842.
  13. 1 2 Lalica, Madison A. K.; Tomescu, Alexandru M. F. (2022-03-01). "The early fossil record of glomeromycete fungi: New data on spores associated with early tracheophytes in the Lower Devonian (Emsian; c. 400 Ma) of Gaspé (Quebec, Canada)". Review of Palaeobotany and Palynology. 298: 104590. doi:10.1016/j.revpalbo.2021.104590. ISSN 0034-6667.


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